1,000 moves later.
1,000 Move Box
This is more of a prototype box I made pushing the limits of how many moves a tiny square shaped Pop Up box could perform. I made just a few in 2017 to test and decided it needs improvements due to wear and tear to the maze and peg system inside.
Each of this boxes 4 sides has a slider and a pretty complicated maze beneath it that causes a long binary sequence of moves needed to unlock it. See image below showing it unlocked.